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Finding the Fourth Proportional to 25,763.63, 38,650.95 and 7,993.90

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Solution

The fourth proportional to 25,763.63, 38,650.95 and 7,993.90 is: 11,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,763.63 : 38,650.95 = 7,993.90 : x
  2. Step 2: Convert to fraction form
    25,763.63/38,650.95 = 7,993.90/x
  3. Step 3: Cross multiply
    25,763.63x = 38,650.95 × 7,993.90
  4. Step 4: Simplify right side
    25,763.63x = 308,971,746.33
  5. Step 5: Solve for x
    x = 308,971,746.33/25,763.63
  6. Step 6: Final answer
    x = 11,992.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.